Not exactly a carbon copy, but a very nice space game with a similar feel: X3 Reunion.
The gameplay is much more complex, it has a finished trading and automation system
so you can actually build an empire with your own production/military in addition to single ship/fleet shenanigans.
Downside is it has a massive learning curve, you have to put ~3 hours in just to get familiar with the basic controls.
If you decide to try it go for the bonus pack that contains all the expansions(Terran Conflict, Albion Prelude) and
some of the most useful community mods. If it's not for you visit the Kingdom's End and Heaven's Assertion sectors
before uninstalling, they have gorgeous environments with nice music. Also, stay away from X Rebirth at all costs